| Piqua to Chivasso | 4,426.13 mi (7,123.17 km) |
| Piqua to Ciampino | 4,752.55 mi (7,648.49 km) |
| Piqua to Cicciano | 4,867.45 mi (7,833.40 km) |
| Piqua to Cingoli | 4,715.40 mi (7,588.70 km) |
| Piqua to Cinisello Balsamo | 4,467.59 mi (7,189.89 km) |
| Piqua to Cinisi | 4,922.07 mi (7,921.31 km) |
| Piqua to Cirie | 4,412.65 mi (7,101.47 km) |
| Piqua to Ciro Marina | 5,043.30 mi (8,116.40 km) |
| Piqua to Cislago | 4,453.68 mi (7,167.51 km) |
| Piqua to Cisterna di Latina | 4,770.54 mi (7,677.44 km) |
| Piqua to Cisternino | 4,997.55 mi (8,042.77 km) |
| Piqua to Citta di Castello | 4,671.69 mi (7,518.36 km) |
| Piqua to Citta Sant'Angelo | 4,783.88 mi (7,698.91 km) |
| Piqua to Cittadella | 4,567.77 mi (7,351.11 km) |
| Piqua to Cittanova | 5,042.81 mi (8,115.63 km) |
